The next step is to connect a scanner to view live data. Look at the camshaft position sensor and the crankshaft position sensor to see if they are listed as their signals being received at the Engine Computer. If one signal is missing, you still should hear the hum of the fuel pump for one second when you turn on the ignition switch. If you do, the pump is okay. Both sensor signals are needed during cranking for the computer to turn the fuel pump on again.
Friday, December 9th, 2016 AT 7:15 PM